Centrifugal cream-separator.



PATENTBD JULY '7, 1908.

P. T. SUNDBBRG. GBNTRIFUGAL CREAM SBPARATOR.

APPLICATION FILED AUG. 14, 1906.

2 SHEETS-SHEET 1.

PATENTED JULY 7,1908.

2 SHEETS-SHEET 2 P. T. SUNDBEEG. CENTRIFUGAL CREAM SEPARATOR.

APPLICATION FILED AUG.14, 1906.

UNITE STATES PATENT OFFICE.

EMIL G. LIND & 00., O

F STOCKHOLM, SWEDEN.

CENTRIFUGAL CREAM-SEPARATOR.

Specification oil-Letters Patent.

Patented July 7, 1908.

Application filed August 14, 1906. Serial No. 330,673.

. To all whom it may concern:

Be it known that I, PER TEonoR SUND- ,BERG, a citizenv of the Kingdom of Sweden,

residing at Sibyllegatan 46-48, in the city of Stockh0lm, Swedemhave invented a new and useful Improvement in Centrifugal Cream- Separators, of which the following is a specification.

My invention relates to improvementsin centrifugal .cream separators, and the object of my improvement is to facilitate the escape of the separated fluids so as to prevent their leakingand mixingwithinthe bowl. I attain this by using outlet or outlets placed at the deepest point in one or more eccentric grooves or in one or more eccentric parts of a groove or grooves.

In'the accompanying drawings Figure 1 is a vertical section of a centrifugal machine constructed' a'ccordin to this invention. Fig. 2 is a' horizonta section on the line shown by 13g. 1 but illustrates an additional eccentric groove with outlets 71. for the cream. Fig. 4 s ows in cross-section the part of the neck provided with groove having more than one outlet. 5

shows'a section. with a centric parts with outlet at the deepest that is merely formed by close is to say the most eccentric point in each part.

The heavy fluid arises outside the coverlate d and escapes through the hole I). The

ight fluid arises inside the neck d of the edge of said neck thrown outwards into an eccentric groove formed on the inside of the neck -0 of the owl- At the deepest point of this 'roove one or hvingtothe high s eed of the bowl the cream will gather in t e deepest part of the groove, where the outlet or outlets are situated and thus be caused toescape quickly,

-so as to not fill the groove and leak down inside the neck 0, that is to say through the joint between the parts 0 and d. parts are not tightened by askets the joint y fitting metal against metal so that when the separator is Fig. 3 is a similar section as.

an eccentric groove having two ecmore outlets h are formed.

These the parts. To avoid effectively a mixing of the cream with the milk a second groove a is provided on the inside of the neck 0 close above the skim-milk outlet 1; having one or I more outlets e at the dee est point. If the skim;milk should under t e pressure of the I at rest liquid matter might settle in between high speed arise inside the neck cit will enter the groove 0 and flow towards the deepest point of it where it is thrown out through the ole or holes e and cannot rise up to the groove 9 so as to mix with the cream.

Instead of using grooves of the form shown in Fig. 2 I can use concentric grooves having one or two or more eccentric parts with out let or outlets at the deepest 'point of each such part. Thisis illustrated in Fig. 5 which shows two eccentric parts'a a with outlets 6 e I can also arrange the main skimmilk outlet in an eccentric groove or in an cecentric part of a' roove. And I can use one or more grooves etween the skim-milk outlet end of the cream-outlet with additional outlet or outlets in said groove or grooves. Thus in Fi 3 an additional eccentric groove g with out et h is shown situate between the grooves a and g.

It is. obvious that this invention may be applied to all kinds of centrifu a1 cream se e arators. The construction s own in t e drawing should be considered only as an exam 1e.

aving I claim is:

having its nec provided With collecting grooves for the cream and milk in the inner walls of said neck, said collecting grooves be ing eccentric to the axis of rotation and having outlets at the deepest, that is to say, the

'most eccentric as described.

In testimony whereof I have hereunto set of two subscribing wit point, substantially my hand in presence nesses. I

PER TEODORv SUNDBERG. Witnesses:

CA L FRIBERG.

E'RROW LL.

In a centrifugal cream separator, a bowl thus described my invention, what i 

